| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #import "FFSFileSelectorPlugin.h" |
| #import "FFSFileSelectorPlugin_Test.h" |
| #import "messages.g.h" |
| |
| #import <objc/runtime.h> |
| |
| @implementation FFSFileSelectorPlugin |
| |
| #pragma mark - FFSFileSelectorApi |
| |
| - (void)openFileSelectorWithConfig:(FFSFileSelectorConfig *)config |
| completion:(void (^)(NSArray<NSString *> *_Nullable, |
| FlutterError *_Nullable))completion { |
| UIDocumentPickerViewController *documentPicker = |
| self.documentPickerViewControllerOverride |
| ?: [[UIDocumentPickerViewController alloc] |
| initWithDocumentTypes:config.utis |
| inMode:UIDocumentPickerModeImport]; |
| documentPicker.delegate = self; |
| if (@available(iOS 11.0, *)) { |
| documentPicker.allowsMultipleSelection = config.allowMultiSelection.boolValue; |
| } |
| |
| UIViewController *presentingVC = |
| self.presentingViewControllerOverride |
| ?: UIApplication.sharedApplication.delegate.window.rootViewController; |
| if (presentingVC) { |
| objc_setAssociatedObject(documentPicker, @selector(openFileSelectorWithConfig:completion:), |
| completion, OBJC_ASSOCIATION_COPY_NONATOMIC); |
| [presentingVC presentViewController:documentPicker animated:YES completion:nil]; |
| } else { |
| completion(nil, [FlutterError errorWithCode:@"error" |
| message:@"Missing root view controller." |
| details:nil]); |
| } |
| } |
| |
| #pragma mark - FlutterPlugin |
| |
| + (void)registerWithRegistrar:(NSObject<FlutterPluginRegistrar> *)registrar { |
| FFSFileSelectorPlugin *plugin = [[FFSFileSelectorPlugin alloc] init]; |
| FFSFileSelectorApiSetup(registrar.messenger, plugin); |
| } |
| |
| #pragma mark - UIDocumentPickerDelegate |
| |
| // This method is only called in iOS < 11.0. The new codepath is |
| // documentPicker:didPickDocumentsAtURLs:, implemented below. |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wdeprecated-implementations" |
| - (void)documentPicker:(UIDocumentPickerViewController *)controller |
| didPickDocumentAtURL:(NSURL *)url { |
| [self sendBackResults:@[ url.path ] error:nil forPicker:controller]; |
| } |
| #pragma clang diagnostic pop |
| |
| - (void)documentPicker:(UIDocumentPickerViewController *)controller |
| didPickDocumentsAtURLs:(NSArray<NSURL *> *)urls { |
| NSMutableArray *paths = [NSMutableArray arrayWithCapacity:urls.count]; |
| for (NSURL *url in urls) { |
| [paths addObject:url.path]; |
| }; |
| [self sendBackResults:paths error:nil forPicker:controller]; |
| } |
| |
| - (void)documentPickerWasCancelled:(UIDocumentPickerViewController *)controller { |
| [self sendBackResults:@[] error:nil forPicker:controller]; |
| } |
| |
| #pragma mark - Helper Methods |
| |
| - (void)sendBackResults:(NSArray<NSString *> *)results |
| error:(FlutterError *)error |
| forPicker:(UIDocumentPickerViewController *)picker { |
| void (^completionBlock)(NSArray<NSString *> *, FlutterError *) = |
| objc_getAssociatedObject(picker, @selector(openFileSelectorWithConfig:completion:)); |
| if (completionBlock) { |
| completionBlock(results, error); |
| objc_setAssociatedObject(picker, @selector(openFileSelectorWithConfig:completion:), nil, |
| OBJC_ASSOCIATION_ASSIGN); |
| } |
| } |
| |
| @end |
